Side overlap shuttle



April 20, 1926. 1,581,300

F. H.-STETSON' SIDE OVERLAP'SHUTTLE Filed May 17. 1922 ATTORNEY. A

Patented Apr. 20, 1926.

UNITED STATES PA'T -E'N T cr me-E.

FRANK H. :STETSON, or 'METHUEN, MASSACHUSETTS, ASSIGNOR IO 'U. SJBOBBI &

SHUTTLE 00., or PROVIDENCE, RHODE ISLAND, 5A coRroRA'r'IonfoF nHoIiEISLAND.

SIDE OVERLAP i SHUTTLE.

1 Application filed-May 17,

Torall whom'it may concern:

Be "it known that I, FRANK H. STETsoN, a citizenof-the'Uni-ted States,residing at Methuen, in the county of Essex and State of..Massachusetts,have invented certain new and useful lmprovements in/Side OverlapShuttles, of which the following is a speclfication. r

Myinvention is an improvement in shuttles, particularly of the selfthreading type for weft replenishinglooms such as are 'shownfor instancein? patentsto Isaac Snow,

v306, February 22, 1921. I

-VVith some types of.yarn, such as worsted, which is more For. less:greasy, I find that with an overlap at the bottom at the back. there isa tendencyfor flyings' and grease to collect atithe bottom in-front ofthis overlapnntil enough accumulates to be taken up by the yarn and becarried into the work causing .flaws. s V I find also that it isdesirable in this class of work to .giveconsiderable'clearance .totheiyarn at the-backzas-it comes cit from the: bobbin. I

For convenience and for the purpose of identification in thisspecificationyI will call -the front that end of the shuttle where theeye is located and the other end ofthe shuttle the back.

I will call an eye which jpasses out of the I .left side when looking atthe front pointa left eye, and an eye on vtheopposite side a right eye.

In allthe figures of the drawings, I show a-shuttle with a left eyeand-in all the figures the thread on the bobbin is supposed to :bewoundv in the usual-way shown in Fig. 1, that is, from left .to right=itmoves over clockwise, thence down underfrom right'to left. I

I will call the top of the shuttle as itruns in a loom the top side, andthe bottomthe bottom-side. V

.Inthe drawings, Fig. l is a plan-view of a shuttle with my improvement.

Fig. 2 .is :an elevationas ,from the left of Fig.1. I

Fig. 3 is an elevation of the threading bilockas from the rightofFigulwith the Fig. 4 is a frontelevationiofl the;thread- .ingblock.

' Fig." 5 is a view from the direction-of. the arrows inFigxlon theJ1ine-5- 5.

Fig. 6-. is a plan view: of a slight modified construction.

Fig. 7 is an elevation from the backof the threading block shown in Fig-63removed 'fronr the shuttle.

:No. 1,344,734 June29,;1920, andNo. 1,369,- 1 g 1 having the usual;bobbin; chamber 10 1 for the bobbin .Bfrom which the,yarn A is un-" S isa shuttle-:ofjthe usual wooden-type wound. 12 is the threadingChamberwhi'ch extends forward in continuation of bobbin chamber 10, and13 is the delivery a passage which extends still 1 further forward ofthe threading chamber. of the .threadingchamber which is included in themetallic threading block F -whichi is set into the woodwof the shuttleand .may be "fixedi therein by means of aiscrew 36 which 7 passesthrough hole. inthe-shuttle and the hole 35 I'm-block F in a wellknownmanner. Preferably; there is at the bottom ofblock F tihe iproject'ion-34 which fits into a recess in the wood of the shuttle. represents ashuttle eye in the wood and this connects with the threading chamber 12through the slot 14 cut from delivery passage 18; '17, 17 represent theusual metal or; iporcelainpins on each .side of eye -G represents athread directing-"guide: plate which extends from the top iof-block Fand therefore the top of the shuttle .down-intothe threading chamber vand includes the I nose 19 which preferably extends forwardofeyeH andterminatesin a thread trappingrim 22011 the side opposite eye H, andalso at the back a thread directing .gu-ide finger 24 which extends fromand under the back part thereof down into locking recess40 which extendsout from .the threading chamber inthe-wood' on the Qppositeiside from.theeye H. Pref- .erab1y, thread. trapping. ri=m22 extends down.slightlynndergan overhang 1 5yformed in the wood.

The locking recess 40 at 4 2 curves around 1-00. indicates thatpart r infront of guide finger 24, and at 41 e"- tends around in back of it beingof such depth that its bottom 43 is level with the top edge 39 of thelower part of block F, and the top part of projection 30 which conformsto the shape of 41 but extends down into a recess 45 which extendsdownward from the locking recess 40.

The front end of block F preferably terminates in a horn 32 whichpreferably from the bottom end runs backward in a web 29 which helps tokeep the yarn down and, together with a pin preferably of porcelain 33which extends downward from the socket 80, directs the yarn out througheye H in a well known manner. 38 is a friction in a hole 37.

The locking recess 40 is shown in Fig. 1 and its outline is indicated bythe lines marked 40 in Fig. 3 as being cut in the wood, but it isobvious that as shown at 50 in Figs. 6 and 7 this recess might be lined,so to speak, with metal 50 extending upward from the bottom 59 of recess51, which bottom 59 corresponds with the top of rim 39 shown in Figs. 1to 5.

The threading block K shown in Figs. 6 and 7 is similar in all respectsto block F except that, so far as the parts 50, 51 and 5 9 areconcerned, they are made of metal being an integral part of K instead ofbeing formed in the Wood.

As the yarn unwinds from the bobbin B so as to sweep under guide finger24 towards the bottom of threading chamber 100 and web 29 is placed low,I can use a very large pin 33 and a very large and long socket 80therefor. By locating friction hole 37 well up to the bottom of socket80, the front part of the yarn is kept in a relatively small path whilethe back part has plenty of clearance as will be seen by examining Fig.5, while at the same time it cannot easily fly out of the threadingchamber on account of guide finger 24 and the front and back lockstherefor formed by 41 and 42.

I claim:

1. The combination in a shuttle having an eye, a bobbin chamber and athreading chamber in continuation thereof which connects on one sidewith said eye and has a locking recess on the other side, of a threaddirecting guide plate which extends from the top of the threadingchamber on the side of the eye over and down thereinto, such guide platehaving a nose which extends forward of the eye with a thread trappingrim on the side opposite said eye, and a thread directing guide fingerwhich extends from and under the thread directing guide plate at theback down into said locking recess, together with a friction means whichprojects upward into the forward part of the threading chamber, a socketwhich extends down substantially level with the top of said frictionmeans, and a guide pin held by said socket.

2. The combination in a shuttle having an eye, a bobbin chamber and athreading chamber in continuation thereof which connects on one sidewith said eye and has a looking recess on the other side with front andback walls, of a thread directing guide plate which extends from the topof the threading chamber on the side of the eye over and down thereinto,such guide plate having a nose which extends forward of the eye with athread trapping rim on the side opposite said eye, and a threaddirecting guide finger which extends from and under the thread directingguide plate at the back down into said locking recess between the frontand back walls thereof.

3. The combination in a shuttle having an eye, a bobbin chamber and athreading chamber in continuation thereof which connects on one sidewith said eye and has a locking recess on the other side with front andback walls, of a thread directing guide plate which extends from the topof the threading chamber on the side of the eye over and down thereinto,such guide plate having a nose and a thread directing guide finger whichextends from and under the thread directing guide plate down into saidlocking recess between the front and back walls thereof.

4. The combination in a shuttle having an eye, a bobbin chamber and athreading chamber in continuation thereof which connects on one sidewith said eye and has a locking recess on the other side with front andback walls, of a thread directing guide plate which extends from the topof the threading chamber on the side of the eye over and down thereinto,such guideplate having a horn behind which is a web and a threaddirecting guide finger which extends from and under the guide plate outinto said locking recess between its front and back walls, together witha friction means of cylindrical form, part of whichextends up into theforward bot-tom part of the threading chamber, its top beingsubstantially level with the bottom of said web, a socket which extendsdown substantially level with the bottom of said web, anda guide pinheld by said socket.

5. The combination in a shuttle having an eye, a bobbin chamber and athreading chamber in continuation thereof which connects on one sidewith said eye and has a locking recess on the other side with front andback walls, of a thread directing guide plate which extends from the topof the threading chamber on the side of the eye over and down thereinto,such guide plate having a nose and a thread directing guide finger whichextends from and under the thread directing guide plate down into saidlocking recess between the front and back walls thereof, the bottom ofthe threading chamber inside the back hook along which i the threadnormally runs being smooth and without obstructions.

6. A shuttle threader having a longitudinal threading chamber and athread directing' guide plate which extends down and out from the topinto such threading chamher, a thread retainin guide finger whichextends from and un er the back part of the thread directing guide plateinto a recess cut in the side wall of the shuttle between the front andback walls of such recess. FRANK H. STETSON.

